1 #include <traceevent/event-parse.h>
3 #include "util/color.h"
4 #include "util/debug.h"
5 #include "util/evlist.h"
6 #include "util/machine.h"
7 #include "util/session.h"
8 #include "util/thread.h"
9 #include "util/parse-options.h"
10 #include "util/strlist.h"
11 #include "util/intlist.h"
12 #include "util/thread_map.h"
13 #include "util/stat.h"
14 #include "trace-event.h"
15 #include "util/parse-events.h"
20 #include <linux/futex.h>
22 /* For older distros: */
24 # define MAP_STACK 0x20000
28 # define MADV_HWPOISON 100
31 #ifndef MADV_MERGEABLE
32 # define MADV_MERGEABLE 12
35 #ifndef MADV_UNMERGEABLE
36 # define MADV_UNMERGEABLE 13
40 # define EFD_SEMAPHORE 1
44 # define EFD_NONBLOCK 00004000
48 # define EFD_CLOEXEC 02000000
52 # define O_CLOEXEC 02000000
60 # define SOCK_CLOEXEC 02000000
64 # define SOCK_NONBLOCK 00004000
67 #ifndef MSG_CMSG_CLOEXEC
68 # define MSG_CMSG_CLOEXEC 0x40000000
71 #ifndef PERF_FLAG_FD_NO_GROUP
72 # define PERF_FLAG_FD_NO_GROUP (1UL << 0)
75 #ifndef PERF_FLAG_FD_OUTPUT
76 # define PERF_FLAG_FD_OUTPUT (1UL << 1)
79 #ifndef PERF_FLAG_PID_CGROUP
80 # define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */
83 #ifndef PERF_FLAG_FD_CLOEXEC
84 # define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */
91 u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
92 void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
96 #define TP_UINT_FIELD(bits) \
97 static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
100 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
109 #define TP_UINT_FIELD__SWAPPED(bits) \
110 static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
113 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
114 return bswap_##bits(value);\
117 TP_UINT_FIELD__SWAPPED(16);
118 TP_UINT_FIELD__SWAPPED(32);
119 TP_UINT_FIELD__SWAPPED(64);
121 static int tp_field__init_uint(struct tp_field *field,
122 struct format_field *format_field,
125 field->offset = format_field->offset;
127 switch (format_field->size) {
129 field->integer = tp_field__u8;
132 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
135 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
138 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
147 static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
149 return sample->raw_data + field->offset;
152 static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
154 field->offset = format_field->offset;
155 field->pointer = tp_field__ptr;
162 struct tp_field args, ret;
166 static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
167 struct tp_field *field,
170 struct format_field *format_field = perf_evsel__field(evsel, name);
172 if (format_field == NULL)
175 return tp_field__init_uint(field, format_field, evsel->needs_swap);
178 #define perf_evsel__init_sc_tp_uint_field(evsel, name) \
179 ({ struct syscall_tp *sc = evsel->priv;\
180 perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
182 static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
183 struct tp_field *field,
186 struct format_field *format_field = perf_evsel__field(evsel, name);
188 if (format_field == NULL)
191 return tp_field__init_ptr(field, format_field);
194 #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
195 ({ struct syscall_tp *sc = evsel->priv;\
196 perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
198 static void perf_evsel__delete_priv(struct perf_evsel *evsel)
201 perf_evsel__delete(evsel);
204 static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
206 evsel->priv = malloc(sizeof(struct syscall_tp));
207 if (evsel->priv != NULL) {
208 if (perf_evsel__init_sc_tp_uint_field(evsel, id))
211 evsel->handler = handler;
222 static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
224 struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
226 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
228 evsel = perf_evsel__newtp("syscalls", direction);
231 if (perf_evsel__init_syscall_tp(evsel, handler))
238 perf_evsel__delete_priv(evsel);
242 #define perf_evsel__sc_tp_uint(evsel, name, sample) \
243 ({ struct syscall_tp *fields = evsel->priv; \
244 fields->name.integer(&fields->name, sample); })
246 #define perf_evsel__sc_tp_ptr(evsel, name, sample) \
247 ({ struct syscall_tp *fields = evsel->priv; \
248 fields->name.pointer(&fields->name, sample); })
250 static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
251 void *sys_enter_handler,
252 void *sys_exit_handler)
255 struct perf_evsel *sys_enter, *sys_exit;
257 sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
258 if (sys_enter == NULL)
261 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
262 goto out_delete_sys_enter;
264 sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
265 if (sys_exit == NULL)
266 goto out_delete_sys_enter;
268 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
269 goto out_delete_sys_exit;
271 perf_evlist__add(evlist, sys_enter);
272 perf_evlist__add(evlist, sys_exit);
279 perf_evsel__delete_priv(sys_exit);
280 out_delete_sys_enter:
281 perf_evsel__delete_priv(sys_enter);
288 struct thread *thread;
298 const char **entries;
301 #define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
302 .nr_entries = ARRAY_SIZE(array), \
306 #define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
308 .nr_entries = ARRAY_SIZE(array), \
312 static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
314 struct syscall_arg *arg)
316 struct strarray *sa = arg->parm;
317 int idx = arg->val - sa->offset;
319 if (idx < 0 || idx >= sa->nr_entries)
320 return scnprintf(bf, size, intfmt, arg->val);
322 return scnprintf(bf, size, "%s", sa->entries[idx]);
325 static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
326 struct syscall_arg *arg)
328 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
331 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
333 #if defined(__i386__) || defined(__x86_64__)
335 * FIXME: Make this available to all arches as soon as the ioctl beautifier
336 * gets rewritten to support all arches.
338 static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
339 struct syscall_arg *arg)
341 return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg);
344 #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
345 #endif /* defined(__i386__) || defined(__x86_64__) */
347 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
348 struct syscall_arg *arg);
350 #define SCA_FD syscall_arg__scnprintf_fd
352 static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
353 struct syscall_arg *arg)
358 return scnprintf(bf, size, "CWD");
360 return syscall_arg__scnprintf_fd(bf, size, arg);
363 #define SCA_FDAT syscall_arg__scnprintf_fd_at
365 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
366 struct syscall_arg *arg);
368 #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
370 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
371 struct syscall_arg *arg)
373 return scnprintf(bf, size, "%#lx", arg->val);
376 #define SCA_HEX syscall_arg__scnprintf_hex
378 static size_t syscall_arg__scnprintf_int(char *bf, size_t size,
379 struct syscall_arg *arg)
381 return scnprintf(bf, size, "%d", arg->val);
384 #define SCA_INT syscall_arg__scnprintf_int
386 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
387 struct syscall_arg *arg)
389 int printed = 0, prot = arg->val;
391 if (prot == PROT_NONE)
392 return scnprintf(bf, size, "NONE");
393 #define P_MMAP_PROT(n) \
394 if (prot & PROT_##n) { \
395 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
405 P_MMAP_PROT(GROWSDOWN);
406 P_MMAP_PROT(GROWSUP);
410 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
415 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
417 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
418 struct syscall_arg *arg)
420 int printed = 0, flags = arg->val;
422 #define P_MMAP_FLAG(n) \
423 if (flags & MAP_##n) { \
424 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
429 P_MMAP_FLAG(PRIVATE);
433 P_MMAP_FLAG(ANONYMOUS);
434 P_MMAP_FLAG(DENYWRITE);
435 P_MMAP_FLAG(EXECUTABLE);
438 P_MMAP_FLAG(GROWSDOWN);
440 P_MMAP_FLAG(HUGETLB);
443 P_MMAP_FLAG(NONBLOCK);
444 P_MMAP_FLAG(NORESERVE);
445 P_MMAP_FLAG(POPULATE);
447 #ifdef MAP_UNINITIALIZED
448 P_MMAP_FLAG(UNINITIALIZED);
453 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
458 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
460 static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
461 struct syscall_arg *arg)
463 int printed = 0, flags = arg->val;
465 #define P_MREMAP_FLAG(n) \
466 if (flags & MREMAP_##n) { \
467 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
468 flags &= ~MREMAP_##n; \
471 P_MREMAP_FLAG(MAYMOVE);
473 P_MREMAP_FLAG(FIXED);
478 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
483 #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
485 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
486 struct syscall_arg *arg)
488 int behavior = arg->val;
491 #define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
494 P_MADV_BHV(SEQUENTIAL);
495 P_MADV_BHV(WILLNEED);
496 P_MADV_BHV(DONTNEED);
498 P_MADV_BHV(DONTFORK);
500 P_MADV_BHV(HWPOISON);
501 #ifdef MADV_SOFT_OFFLINE
502 P_MADV_BHV(SOFT_OFFLINE);
504 P_MADV_BHV(MERGEABLE);
505 P_MADV_BHV(UNMERGEABLE);
507 P_MADV_BHV(HUGEPAGE);
509 #ifdef MADV_NOHUGEPAGE
510 P_MADV_BHV(NOHUGEPAGE);
513 P_MADV_BHV(DONTDUMP);
522 return scnprintf(bf, size, "%#x", behavior);
525 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
527 static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
528 struct syscall_arg *arg)
530 int printed = 0, op = arg->val;
533 return scnprintf(bf, size, "NONE");
535 if ((op & LOCK_##cmd) == LOCK_##cmd) { \
536 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
551 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
556 #define SCA_FLOCK syscall_arg__scnprintf_flock
558 static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
560 enum syscall_futex_args {
561 SCF_UADDR = (1 << 0),
564 SCF_TIMEOUT = (1 << 3),
565 SCF_UADDR2 = (1 << 4),
569 int cmd = op & FUTEX_CMD_MASK;
573 #define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n);
574 P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
575 P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
576 P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
577 P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break;
578 P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break;
579 P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break;
580 P_FUTEX_OP(WAKE_OP); break;
581 P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
582 P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
583 P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
584 P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break;
585 P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break;
586 P_FUTEX_OP(WAIT_REQUEUE_PI); break;
587 default: printed = scnprintf(bf, size, "%#x", cmd); break;
590 if (op & FUTEX_PRIVATE_FLAG)
591 printed += scnprintf(bf + printed, size - printed, "|PRIV");
593 if (op & FUTEX_CLOCK_REALTIME)
594 printed += scnprintf(bf + printed, size - printed, "|CLKRT");
599 #define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
601 static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
602 static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
604 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
605 static DEFINE_STRARRAY(itimers);
607 static const char *whences[] = { "SET", "CUR", "END",
615 static DEFINE_STRARRAY(whences);
617 static const char *fcntl_cmds[] = {
618 "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
619 "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64",
620 "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX",
623 static DEFINE_STRARRAY(fcntl_cmds);
625 static const char *rlimit_resources[] = {
626 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
627 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
630 static DEFINE_STRARRAY(rlimit_resources);
632 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
633 static DEFINE_STRARRAY(sighow);
635 static const char *clockid[] = {
636 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
637 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE",
639 static DEFINE_STRARRAY(clockid);
641 static const char *socket_families[] = {
642 "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
643 "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
644 "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
645 "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
646 "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
647 "ALG", "NFC", "VSOCK",
649 static DEFINE_STRARRAY(socket_families);
651 #ifndef SOCK_TYPE_MASK
652 #define SOCK_TYPE_MASK 0xf
655 static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
656 struct syscall_arg *arg)
660 flags = type & ~SOCK_TYPE_MASK;
662 type &= SOCK_TYPE_MASK;
664 * Can't use a strarray, MIPS may override for ABI reasons.
667 #define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
672 P_SK_TYPE(SEQPACKET);
677 printed = scnprintf(bf, size, "%#x", type);
680 #define P_SK_FLAG(n) \
681 if (flags & SOCK_##n) { \
682 printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
683 flags &= ~SOCK_##n; \
691 printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
696 #define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
699 #define MSG_PROBE 0x10
701 #ifndef MSG_WAITFORONE
702 #define MSG_WAITFORONE 0x10000
704 #ifndef MSG_SENDPAGE_NOTLAST
705 #define MSG_SENDPAGE_NOTLAST 0x20000
708 #define MSG_FASTOPEN 0x20000000
711 static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
712 struct syscall_arg *arg)
714 int printed = 0, flags = arg->val;
717 return scnprintf(bf, size, "NONE");
718 #define P_MSG_FLAG(n) \
719 if (flags & MSG_##n) { \
720 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
726 P_MSG_FLAG(DONTROUTE);
731 P_MSG_FLAG(DONTWAIT);
738 P_MSG_FLAG(ERRQUEUE);
739 P_MSG_FLAG(NOSIGNAL);
741 P_MSG_FLAG(WAITFORONE);
742 P_MSG_FLAG(SENDPAGE_NOTLAST);
743 P_MSG_FLAG(FASTOPEN);
744 P_MSG_FLAG(CMSG_CLOEXEC);
748 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
753 #define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
755 static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
756 struct syscall_arg *arg)
761 if (mode == F_OK) /* 0 */
762 return scnprintf(bf, size, "F");
764 if (mode & n##_OK) { \
765 printed += scnprintf(bf + printed, size - printed, "%s", #n); \
775 printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
780 #define SCA_ACCMODE syscall_arg__scnprintf_access_mode
782 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
783 struct syscall_arg *arg)
785 int printed = 0, flags = arg->val;
787 if (!(flags & O_CREAT))
788 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
791 return scnprintf(bf, size, "RDONLY");
793 if (flags & O_##n) { \
794 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
818 if ((flags & O_SYNC) == O_SYNC)
819 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC");
831 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
836 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
838 static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size,
839 struct syscall_arg *arg)
841 int printed = 0, flags = arg->val;
847 if (flags & PERF_FLAG_##n) { \
848 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
849 flags &= ~PERF_FLAG_##n; \
859 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
864 #define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags
866 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
867 struct syscall_arg *arg)
869 int printed = 0, flags = arg->val;
872 return scnprintf(bf, size, "NONE");
874 if (flags & EFD_##n) { \
875 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
885 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
890 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
892 static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
893 struct syscall_arg *arg)
895 int printed = 0, flags = arg->val;
898 if (flags & O_##n) { \
899 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
908 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
913 #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
915 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
920 #define P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n)
963 return scnprintf(bf, size, "%#x", sig);
966 #define SCA_SIGNUM syscall_arg__scnprintf_signum
968 #if defined(__i386__) || defined(__x86_64__)
970 * FIXME: Make this available to all arches.
972 #define TCGETS 0x5401
974 static const char *tioctls[] = {
975 "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW",
976 "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL",
977 "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI",
978 "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC",
979 "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX",
980 "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO",
981 "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK",
982 "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2",
983 "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK",
984 "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG",
985 "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL",
986 [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG",
987 "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS",
988 "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI",
989 "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE",
992 static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
993 #endif /* defined(__i386__) || defined(__x86_64__) */
995 #define STRARRAY(arg, name, array) \
996 .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
997 .arg_parm = { [arg] = &strarray__##array, }
999 static struct syscall_fmt {
1002 size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
1007 } syscall_fmts[] = {
1008 { .name = "access", .errmsg = true,
1009 .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, },
1010 { .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
1011 { .name = "brk", .hexret = true,
1012 .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
1013 { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), },
1014 { .name = "close", .errmsg = true,
1015 .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, },
1016 { .name = "connect", .errmsg = true, },
1017 { .name = "dup", .errmsg = true,
1018 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1019 { .name = "dup2", .errmsg = true,
1020 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1021 { .name = "dup3", .errmsg = true,
1022 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1023 { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
1024 { .name = "eventfd2", .errmsg = true,
1025 .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
1026 { .name = "faccessat", .errmsg = true,
1027 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1028 { .name = "fadvise64", .errmsg = true,
1029 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1030 { .name = "fallocate", .errmsg = true,
1031 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1032 { .name = "fchdir", .errmsg = true,
1033 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1034 { .name = "fchmod", .errmsg = true,
1035 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1036 { .name = "fchmodat", .errmsg = true,
1037 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1038 { .name = "fchown", .errmsg = true,
1039 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1040 { .name = "fchownat", .errmsg = true,
1041 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1042 { .name = "fcntl", .errmsg = true,
1043 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1044 [1] = SCA_STRARRAY, /* cmd */ },
1045 .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
1046 { .name = "fdatasync", .errmsg = true,
1047 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1048 { .name = "flock", .errmsg = true,
1049 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1050 [1] = SCA_FLOCK, /* cmd */ }, },
1051 { .name = "fsetxattr", .errmsg = true,
1052 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1053 { .name = "fstat", .errmsg = true, .alias = "newfstat",
1054 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1055 { .name = "fstatat", .errmsg = true, .alias = "newfstatat",
1056 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1057 { .name = "fstatfs", .errmsg = true,
1058 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1059 { .name = "fsync", .errmsg = true,
1060 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1061 { .name = "ftruncate", .errmsg = true,
1062 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1063 { .name = "futex", .errmsg = true,
1064 .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
1065 { .name = "futimesat", .errmsg = true,
1066 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1067 { .name = "getdents", .errmsg = true,
1068 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1069 { .name = "getdents64", .errmsg = true,
1070 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1071 { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1072 { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
1073 { .name = "ioctl", .errmsg = true,
1074 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1075 #if defined(__i386__) || defined(__x86_64__)
1077 * FIXME: Make this available to all arches.
1079 [1] = SCA_STRHEXARRAY, /* cmd */
1080 [2] = SCA_HEX, /* arg */ },
1081 .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, },
1083 [2] = SCA_HEX, /* arg */ }, },
1085 { .name = "kill", .errmsg = true,
1086 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
1087 { .name = "linkat", .errmsg = true,
1088 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1089 { .name = "lseek", .errmsg = true,
1090 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1091 [2] = SCA_STRARRAY, /* whence */ },
1092 .arg_parm = { [2] = &strarray__whences, /* whence */ }, },
1093 { .name = "lstat", .errmsg = true, .alias = "newlstat", },
1094 { .name = "madvise", .errmsg = true,
1095 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1096 [2] = SCA_MADV_BHV, /* behavior */ }, },
1097 { .name = "mkdirat", .errmsg = true,
1098 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1099 { .name = "mknodat", .errmsg = true,
1100 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
1101 { .name = "mlock", .errmsg = true,
1102 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1103 { .name = "mlockall", .errmsg = true,
1104 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1105 { .name = "mmap", .hexret = true,
1106 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
1107 [2] = SCA_MMAP_PROT, /* prot */
1108 [3] = SCA_MMAP_FLAGS, /* flags */
1109 [4] = SCA_FD, /* fd */ }, },
1110 { .name = "mprotect", .errmsg = true,
1111 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1112 [2] = SCA_MMAP_PROT, /* prot */ }, },
1113 { .name = "mremap", .hexret = true,
1114 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
1115 [3] = SCA_MREMAP_FLAGS, /* flags */
1116 [4] = SCA_HEX, /* new_addr */ }, },
1117 { .name = "munlock", .errmsg = true,
1118 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1119 { .name = "munmap", .errmsg = true,
1120 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1121 { .name = "name_to_handle_at", .errmsg = true,
1122 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1123 { .name = "newfstatat", .errmsg = true,
1124 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1125 { .name = "open", .errmsg = true,
1126 .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, },
1127 { .name = "open_by_handle_at", .errmsg = true,
1128 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1129 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
1130 { .name = "openat", .errmsg = true,
1131 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1132 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
1133 { .name = "perf_event_open", .errmsg = true,
1134 .arg_scnprintf = { [1] = SCA_INT, /* pid */
1135 [2] = SCA_INT, /* cpu */
1136 [3] = SCA_FD, /* group_fd */
1137 [4] = SCA_PERF_FLAGS, /* flags */ }, },
1138 { .name = "pipe2", .errmsg = true,
1139 .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, },
1140 { .name = "poll", .errmsg = true, .timeout = true, },
1141 { .name = "ppoll", .errmsg = true, .timeout = true, },
1142 { .name = "pread", .errmsg = true, .alias = "pread64",
1143 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1144 { .name = "preadv", .errmsg = true, .alias = "pread",
1145 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1146 { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
1147 { .name = "pwrite", .errmsg = true, .alias = "pwrite64",
1148 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1149 { .name = "pwritev", .errmsg = true,
1150 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1151 { .name = "read", .errmsg = true,
1152 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1153 { .name = "readlinkat", .errmsg = true,
1154 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1155 { .name = "readv", .errmsg = true,
1156 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1157 { .name = "recvfrom", .errmsg = true,
1158 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1159 { .name = "recvmmsg", .errmsg = true,
1160 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1161 { .name = "recvmsg", .errmsg = true,
1162 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
1163 { .name = "renameat", .errmsg = true,
1164 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1165 { .name = "rt_sigaction", .errmsg = true,
1166 .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
1167 { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), },
1168 { .name = "rt_sigqueueinfo", .errmsg = true,
1169 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
1170 { .name = "rt_tgsigqueueinfo", .errmsg = true,
1171 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
1172 { .name = "select", .errmsg = true, .timeout = true, },
1173 { .name = "sendmmsg", .errmsg = true,
1174 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1175 { .name = "sendmsg", .errmsg = true,
1176 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
1177 { .name = "sendto", .errmsg = true,
1178 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1179 { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1180 { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
1181 { .name = "shutdown", .errmsg = true,
1182 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1183 { .name = "socket", .errmsg = true,
1184 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1185 [1] = SCA_SK_TYPE, /* type */ },
1186 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
1187 { .name = "socketpair", .errmsg = true,
1188 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1189 [1] = SCA_SK_TYPE, /* type */ },
1190 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
1191 { .name = "stat", .errmsg = true, .alias = "newstat", },
1192 { .name = "symlinkat", .errmsg = true,
1193 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1194 { .name = "tgkill", .errmsg = true,
1195 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
1196 { .name = "tkill", .errmsg = true,
1197 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
1198 { .name = "uname", .errmsg = true, .alias = "newuname", },
1199 { .name = "unlinkat", .errmsg = true,
1200 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1201 { .name = "utimensat", .errmsg = true,
1202 .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, },
1203 { .name = "write", .errmsg = true,
1204 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1205 { .name = "writev", .errmsg = true,
1206 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
1209 static int syscall_fmt__cmp(const void *name, const void *fmtp)
1211 const struct syscall_fmt *fmt = fmtp;
1212 return strcmp(name, fmt->name);
1215 static struct syscall_fmt *syscall_fmt__find(const char *name)
1217 const int nmemb = ARRAY_SIZE(syscall_fmts);
1218 return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
1222 struct event_format *tp_format;
1224 struct format_field *args;
1228 struct syscall_fmt *fmt;
1229 size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
1233 static size_t fprintf_duration(unsigned long t, FILE *fp)
1235 double duration = (double)t / NSEC_PER_MSEC;
1236 size_t printed = fprintf(fp, "(");
1238 if (duration >= 1.0)
1239 printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration);
1240 else if (duration >= 0.01)
1241 printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration);
1243 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration);
1244 return printed + fprintf(fp, "): ");
1247 struct thread_trace {
1251 unsigned long nr_events;
1252 unsigned long pfmaj, pfmin;
1260 struct intlist *syscall_stats;
1263 static struct thread_trace *thread_trace__new(void)
1265 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace));
1268 ttrace->paths.max = -1;
1270 ttrace->syscall_stats = intlist__new(NULL);
1275 static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
1277 struct thread_trace *ttrace;
1282 if (thread__priv(thread) == NULL)
1283 thread__set_priv(thread, thread_trace__new());
1285 if (thread__priv(thread) == NULL)
1288 ttrace = thread__priv(thread);
1289 ++ttrace->nr_events;
1293 color_fprintf(fp, PERF_COLOR_RED,
1294 "WARNING: not enough memory, dropping samples!\n");
1298 #define TRACE_PFMAJ (1 << 0)
1299 #define TRACE_PFMIN (1 << 1)
1302 struct perf_tool tool;
1309 struct syscall *table;
1311 struct record_opts opts;
1312 struct perf_evlist *evlist;
1313 struct machine *host;
1314 struct thread *current;
1317 unsigned long nr_events;
1318 struct strlist *ev_qualifier;
1319 const char *last_vfs_getname;
1320 struct intlist *tid_list;
1321 struct intlist *pid_list;
1326 double duration_filter;
1332 bool not_ev_qualifier;
1336 bool multiple_threads;
1340 bool show_tool_stats;
1341 bool trace_syscalls;
1346 static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
1348 struct thread_trace *ttrace = thread__priv(thread);
1350 if (fd > ttrace->paths.max) {
1351 char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
1356 if (ttrace->paths.max != -1) {
1357 memset(npath + ttrace->paths.max + 1, 0,
1358 (fd - ttrace->paths.max) * sizeof(char *));
1360 memset(npath, 0, (fd + 1) * sizeof(char *));
1363 ttrace->paths.table = npath;
1364 ttrace->paths.max = fd;
1367 ttrace->paths.table[fd] = strdup(pathname);
1369 return ttrace->paths.table[fd] != NULL ? 0 : -1;
1372 static int thread__read_fd_path(struct thread *thread, int fd)
1374 char linkname[PATH_MAX], pathname[PATH_MAX];
1378 if (thread->pid_ == thread->tid) {
1379 scnprintf(linkname, sizeof(linkname),
1380 "/proc/%d/fd/%d", thread->pid_, fd);
1382 scnprintf(linkname, sizeof(linkname),
1383 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
1386 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
1389 ret = readlink(linkname, pathname, sizeof(pathname));
1391 if (ret < 0 || ret > st.st_size)
1394 pathname[ret] = '\0';
1395 return trace__set_fd_pathname(thread, fd, pathname);
1398 static const char *thread__fd_path(struct thread *thread, int fd,
1399 struct trace *trace)
1401 struct thread_trace *ttrace = thread__priv(thread);
1409 if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) {
1412 ++trace->stats.proc_getname;
1413 if (thread__read_fd_path(thread, fd))
1417 return ttrace->paths.table[fd];
1420 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
1421 struct syscall_arg *arg)
1424 size_t printed = scnprintf(bf, size, "%d", fd);
1425 const char *path = thread__fd_path(arg->thread, fd, arg->trace);
1428 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1433 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
1434 struct syscall_arg *arg)
1437 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
1438 struct thread_trace *ttrace = thread__priv(arg->thread);
1440 if (ttrace && fd >= 0 && fd <= ttrace->paths.max)
1441 zfree(&ttrace->paths.table[fd]);
1446 static bool trace__filter_duration(struct trace *trace, double t)
1448 return t < (trace->duration_filter * NSEC_PER_MSEC);
1451 static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
1453 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC;
1455 return fprintf(fp, "%10.3f ", ts);
1458 static bool done = false;
1459 static bool interrupted = false;
1461 static void sig_handler(int sig)
1464 interrupted = sig == SIGINT;
1467 static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
1468 u64 duration, u64 tstamp, FILE *fp)
1470 size_t printed = trace__fprintf_tstamp(trace, tstamp, fp);
1471 printed += fprintf_duration(duration, fp);
1473 if (trace->multiple_threads) {
1474 if (trace->show_comm)
1475 printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
1476 printed += fprintf(fp, "%d ", thread->tid);
1482 static int trace__process_event(struct trace *trace, struct machine *machine,
1483 union perf_event *event, struct perf_sample *sample)
1487 switch (event->header.type) {
1488 case PERF_RECORD_LOST:
1489 color_fprintf(trace->output, PERF_COLOR_RED,
1490 "LOST %" PRIu64 " events!\n", event->lost.lost);
1491 ret = machine__process_lost_event(machine, event, sample);
1493 ret = machine__process_event(machine, event, sample);
1500 static int trace__tool_process(struct perf_tool *tool,
1501 union perf_event *event,
1502 struct perf_sample *sample,
1503 struct machine *machine)
1505 struct trace *trace = container_of(tool, struct trace, tool);
1506 return trace__process_event(trace, machine, event, sample);
1509 static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
1511 int err = symbol__init(NULL);
1516 trace->host = machine__new_host();
1517 if (trace->host == NULL)
1520 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
1521 evlist->threads, trace__tool_process, false,
1522 trace->opts.proc_map_timeout);
1529 static int syscall__set_arg_fmts(struct syscall *sc)
1531 struct format_field *field;
1534 sc->arg_scnprintf = calloc(sc->nr_args, sizeof(void *));
1535 if (sc->arg_scnprintf == NULL)
1539 sc->arg_parm = sc->fmt->arg_parm;
1541 for (field = sc->args; field; field = field->next) {
1542 if (sc->fmt && sc->fmt->arg_scnprintf[idx])
1543 sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx];
1544 else if (field->flags & FIELD_IS_POINTER)
1545 sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex;
1552 static int trace__read_syscall_info(struct trace *trace, int id)
1556 const char *name = audit_syscall_to_name(id, trace->audit.machine);
1561 if (id > trace->syscalls.max) {
1562 struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc));
1564 if (nsyscalls == NULL)
1567 if (trace->syscalls.max != -1) {
1568 memset(nsyscalls + trace->syscalls.max + 1, 0,
1569 (id - trace->syscalls.max) * sizeof(*sc));
1571 memset(nsyscalls, 0, (id + 1) * sizeof(*sc));
1574 trace->syscalls.table = nsyscalls;
1575 trace->syscalls.max = id;
1578 sc = trace->syscalls.table + id;
1581 if (trace->ev_qualifier) {
1582 bool in = strlist__find(trace->ev_qualifier, name) != NULL;
1584 if (!(in ^ trace->not_ev_qualifier)) {
1585 sc->filtered = true;
1587 * No need to do read tracepoint information since this will be
1594 sc->fmt = syscall_fmt__find(sc->name);
1596 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
1597 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
1599 if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) {
1600 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
1601 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
1604 if (sc->tp_format == NULL)
1607 sc->args = sc->tp_format->format.fields;
1608 sc->nr_args = sc->tp_format->format.nr_fields;
1609 /* drop nr field - not relevant here; does not exist on older kernels */
1610 if (sc->args && strcmp(sc->args->name, "nr") == 0) {
1611 sc->args = sc->args->next;
1615 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit");
1617 return syscall__set_arg_fmts(sc);
1621 * args is to be interpreted as a series of longs but we need to handle
1622 * 8-byte unaligned accesses. args points to raw_data within the event
1623 * and raw_data is guaranteed to be 8-byte unaligned because it is
1624 * preceded by raw_size which is a u32. So we need to copy args to a temp
1625 * variable to read it. Most notably this avoids extended load instructions
1626 * on unaligned addresses
1629 static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
1630 unsigned char *args, struct trace *trace,
1631 struct thread *thread)
1637 if (sc->args != NULL) {
1638 struct format_field *field;
1640 struct syscall_arg arg = {
1647 for (field = sc->args; field;
1648 field = field->next, ++arg.idx, bit <<= 1) {
1652 /* special care for unaligned accesses */
1653 p = args + sizeof(unsigned long) * arg.idx;
1654 memcpy(&val, p, sizeof(val));
1657 * Suppress this argument if its value is zero and
1658 * and we don't have a string associated in an
1662 !(sc->arg_scnprintf &&
1663 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
1664 sc->arg_parm[arg.idx]))
1667 printed += scnprintf(bf + printed, size - printed,
1668 "%s%s: ", printed ? ", " : "", field->name);
1669 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
1672 arg.parm = sc->arg_parm[arg.idx];
1673 printed += sc->arg_scnprintf[arg.idx](bf + printed,
1674 size - printed, &arg);
1676 printed += scnprintf(bf + printed, size - printed,
1684 /* special care for unaligned accesses */
1685 p = args + sizeof(unsigned long) * i;
1686 memcpy(&val, p, sizeof(val));
1687 printed += scnprintf(bf + printed, size - printed,
1689 printed ? ", " : "", i, val);
1697 typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
1698 union perf_event *event,
1699 struct perf_sample *sample);
1701 static struct syscall *trace__syscall_info(struct trace *trace,
1702 struct perf_evsel *evsel, int id)
1708 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
1709 * before that, leaving at a higher verbosity level till that is
1710 * explained. Reproduced with plain ftrace with:
1712 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
1713 * grep "NR -1 " /t/trace_pipe
1715 * After generating some load on the machine.
1719 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
1720 id, perf_evsel__name(evsel), ++n);
1725 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) &&
1726 trace__read_syscall_info(trace, id))
1729 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL))
1732 return &trace->syscalls.table[id];
1736 fprintf(trace->output, "Problems reading syscall %d", id);
1737 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
1738 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
1739 fputs(" information\n", trace->output);
1744 static void thread__update_stats(struct thread_trace *ttrace,
1745 int id, struct perf_sample *sample)
1747 struct int_node *inode;
1748 struct stats *stats;
1751 inode = intlist__findnew(ttrace->syscall_stats, id);
1755 stats = inode->priv;
1756 if (stats == NULL) {
1757 stats = malloc(sizeof(struct stats));
1761 inode->priv = stats;
1764 if (ttrace->entry_time && sample->time > ttrace->entry_time)
1765 duration = sample->time - ttrace->entry_time;
1767 update_stats(stats, duration);
1770 static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample)
1772 struct thread_trace *ttrace;
1776 if (trace->current == NULL)
1779 ttrace = thread__priv(trace->current);
1781 if (!ttrace->entry_pending)
1784 duration = sample->time - ttrace->entry_time;
1786 printed = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output);
1787 printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str);
1788 ttrace->entry_pending = false;
1793 static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
1794 union perf_event *event __maybe_unused,
1795 struct perf_sample *sample)
1800 struct thread *thread;
1801 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
1802 struct syscall *sc = trace__syscall_info(trace, evsel, id);
1803 struct thread_trace *ttrace;
1811 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
1812 ttrace = thread__trace(thread, trace->output);
1816 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
1818 if (ttrace->entry_str == NULL) {
1819 ttrace->entry_str = malloc(1024);
1820 if (!ttrace->entry_str)
1824 if (!trace->summary_only)
1825 trace__printf_interrupted_entry(trace, sample);
1827 ttrace->entry_time = sample->time;
1828 msg = ttrace->entry_str;
1829 printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
1831 printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
1832 args, trace, thread);
1835 if (!trace->duration_filter && !trace->summary_only) {
1836 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
1837 fprintf(trace->output, "%-70s\n", ttrace->entry_str);
1840 ttrace->entry_pending = true;
1842 if (trace->current != thread) {
1843 thread__put(trace->current);
1844 trace->current = thread__get(thread);
1848 thread__put(thread);
1852 static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
1853 union perf_event *event __maybe_unused,
1854 struct perf_sample *sample)
1858 struct thread *thread;
1859 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
1860 struct syscall *sc = trace__syscall_info(trace, evsel, id);
1861 struct thread_trace *ttrace;
1869 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
1870 ttrace = thread__trace(thread, trace->output);
1875 thread__update_stats(ttrace, id, sample);
1877 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
1879 if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
1880 trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
1881 trace->last_vfs_getname = NULL;
1882 ++trace->stats.vfs_getname;
1885 ttrace->exit_time = sample->time;
1887 if (ttrace->entry_time) {
1888 duration = sample->time - ttrace->entry_time;
1889 if (trace__filter_duration(trace, duration))
1891 } else if (trace->duration_filter)
1894 if (trace->summary_only)
1897 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
1899 if (ttrace->entry_pending) {
1900 fprintf(trace->output, "%-70s", ttrace->entry_str);
1902 fprintf(trace->output, " ... [");
1903 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
1904 fprintf(trace->output, "]: %s()", sc->name);
1907 if (sc->fmt == NULL) {
1909 fprintf(trace->output, ") = %ld", ret);
1910 } else if (ret < 0 && sc->fmt->errmsg) {
1911 char bf[STRERR_BUFSIZE];
1912 const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
1913 *e = audit_errno_to_name(-ret);
1915 fprintf(trace->output, ") = -1 %s %s", e, emsg);
1916 } else if (ret == 0 && sc->fmt->timeout)
1917 fprintf(trace->output, ") = 0 Timeout");
1918 else if (sc->fmt->hexret)
1919 fprintf(trace->output, ") = %#lx", ret);
1923 fputc('\n', trace->output);
1925 ttrace->entry_pending = false;
1928 thread__put(thread);
1932 static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
1933 union perf_event *event __maybe_unused,
1934 struct perf_sample *sample)
1936 trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
1940 static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
1941 union perf_event *event __maybe_unused,
1942 struct perf_sample *sample)
1944 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
1945 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
1946 struct thread *thread = machine__findnew_thread(trace->host,
1949 struct thread_trace *ttrace = thread__trace(thread, trace->output);
1954 ttrace->runtime_ms += runtime_ms;
1955 trace->runtime_ms += runtime_ms;
1956 thread__put(thread);
1960 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
1962 perf_evsel__strval(evsel, sample, "comm"),
1963 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
1965 perf_evsel__intval(evsel, sample, "vruntime"));
1966 thread__put(thread);
1970 static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
1971 union perf_event *event __maybe_unused,
1972 struct perf_sample *sample)
1974 trace__printf_interrupted_entry(trace, sample);
1975 trace__fprintf_tstamp(trace, sample->time, trace->output);
1977 if (trace->trace_syscalls)
1978 fprintf(trace->output, "( ): ");
1980 fprintf(trace->output, "%s:", evsel->name);
1982 if (evsel->tp_format) {
1983 event_format__fprintf(evsel->tp_format, sample->cpu,
1984 sample->raw_data, sample->raw_size,
1988 fprintf(trace->output, ")\n");
1992 static void print_location(FILE *f, struct perf_sample *sample,
1993 struct addr_location *al,
1994 bool print_dso, bool print_sym)
1997 if ((verbose || print_dso) && al->map)
1998 fprintf(f, "%s@", al->map->dso->long_name);
2000 if ((verbose || print_sym) && al->sym)
2001 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
2002 al->addr - al->sym->start);
2004 fprintf(f, "0x%" PRIx64, al->addr);
2006 fprintf(f, "0x%" PRIx64, sample->addr);
2009 static int trace__pgfault(struct trace *trace,
2010 struct perf_evsel *evsel,
2011 union perf_event *event,
2012 struct perf_sample *sample)
2014 struct thread *thread;
2015 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
2016 struct addr_location al;
2017 char map_type = 'd';
2018 struct thread_trace *ttrace;
2021 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
2022 ttrace = thread__trace(thread, trace->output);
2026 if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
2031 if (trace->summary_only)
2034 thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
2037 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
2039 fprintf(trace->output, "%sfault [",
2040 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
2043 print_location(trace->output, sample, &al, false, true);
2045 fprintf(trace->output, "] => ");
2047 thread__find_addr_location(thread, cpumode, MAP__VARIABLE,
2051 thread__find_addr_location(thread, cpumode,
2052 MAP__FUNCTION, sample->addr, &al);
2060 print_location(trace->output, sample, &al, true, false);
2062 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
2066 thread__put(thread);
2070 static bool skip_sample(struct trace *trace, struct perf_sample *sample)
2072 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
2073 (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
2076 if (trace->pid_list || trace->tid_list)
2082 static int trace__process_sample(struct perf_tool *tool,
2083 union perf_event *event,
2084 struct perf_sample *sample,
2085 struct perf_evsel *evsel,
2086 struct machine *machine __maybe_unused)
2088 struct trace *trace = container_of(tool, struct trace, tool);
2091 tracepoint_handler handler = evsel->handler;
2093 if (skip_sample(trace, sample))
2096 if (!trace->full_time && trace->base_time == 0)
2097 trace->base_time = sample->time;
2101 handler(trace, evsel, event, sample);
2107 static int parse_target_str(struct trace *trace)
2109 if (trace->opts.target.pid) {
2110 trace->pid_list = intlist__new(trace->opts.target.pid);
2111 if (trace->pid_list == NULL) {
2112 pr_err("Error parsing process id string\n");
2117 if (trace->opts.target.tid) {
2118 trace->tid_list = intlist__new(trace->opts.target.tid);
2119 if (trace->tid_list == NULL) {
2120 pr_err("Error parsing thread id string\n");
2128 static int trace__record(struct trace *trace, int argc, const char **argv)
2130 unsigned int rec_argc, i, j;
2131 const char **rec_argv;
2132 const char * const record_args[] = {
2139 const char * const sc_args[] = { "-e", };
2140 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
2141 const char * const majpf_args[] = { "-e", "major-faults" };
2142 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
2143 const char * const minpf_args[] = { "-e", "minor-faults" };
2144 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
2146 /* +1 is for the event string below */
2147 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 +
2148 majpf_args_nr + minpf_args_nr + argc;
2149 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2151 if (rec_argv == NULL)
2155 for (i = 0; i < ARRAY_SIZE(record_args); i++)
2156 rec_argv[j++] = record_args[i];
2158 if (trace->trace_syscalls) {
2159 for (i = 0; i < sc_args_nr; i++)
2160 rec_argv[j++] = sc_args[i];
2162 /* event string may be different for older kernels - e.g., RHEL6 */
2163 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
2164 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
2165 else if (is_valid_tracepoint("syscalls:sys_enter"))
2166 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
2168 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
2173 if (trace->trace_pgfaults & TRACE_PFMAJ)
2174 for (i = 0; i < majpf_args_nr; i++)
2175 rec_argv[j++] = majpf_args[i];
2177 if (trace->trace_pgfaults & TRACE_PFMIN)
2178 for (i = 0; i < minpf_args_nr; i++)
2179 rec_argv[j++] = minpf_args[i];
2181 for (i = 0; i < (unsigned int)argc; i++)
2182 rec_argv[j++] = argv[i];
2184 return cmd_record(j, rec_argv, NULL);
2187 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
2189 static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
2191 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
2195 if (perf_evsel__field(evsel, "pathname") == NULL) {
2196 perf_evsel__delete(evsel);
2200 evsel->handler = trace__vfs_getname;
2201 perf_evlist__add(evlist, evsel);
2204 static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
2207 struct perf_evsel *evsel;
2208 struct perf_event_attr attr = {
2209 .type = PERF_TYPE_SOFTWARE,
2213 attr.config = config;
2214 attr.sample_period = 1;
2216 event_attr_init(&attr);
2218 evsel = perf_evsel__new(&attr);
2222 evsel->handler = trace__pgfault;
2223 perf_evlist__add(evlist, evsel);
2228 static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
2230 const u32 type = event->header.type;
2231 struct perf_evsel *evsel;
2233 if (!trace->full_time && trace->base_time == 0)
2234 trace->base_time = sample->time;
2236 if (type != PERF_RECORD_SAMPLE) {
2237 trace__process_event(trace, trace->host, event, sample);
2241 evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
2242 if (evsel == NULL) {
2243 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
2247 if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
2248 sample->raw_data == NULL) {
2249 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
2250 perf_evsel__name(evsel), sample->tid,
2251 sample->cpu, sample->raw_size);
2253 tracepoint_handler handler = evsel->handler;
2254 handler(trace, evsel, event, sample);
2258 static int trace__run(struct trace *trace, int argc, const char **argv)
2260 struct perf_evlist *evlist = trace->evlist;
2262 unsigned long before;
2263 const bool forks = argc > 0;
2264 bool draining = false;
2268 if (trace->trace_syscalls &&
2269 perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
2271 goto out_error_raw_syscalls;
2273 if (trace->trace_syscalls)
2274 perf_evlist__add_vfs_getname(evlist);
2276 if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
2277 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
2281 if ((trace->trace_pgfaults & TRACE_PFMIN) &&
2282 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
2286 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
2287 trace__sched_stat_runtime))
2288 goto out_error_sched_stat_runtime;
2290 err = perf_evlist__create_maps(evlist, &trace->opts.target);
2292 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
2293 goto out_delete_evlist;
2296 err = trace__symbols_init(trace, evlist);
2298 fprintf(trace->output, "Problems initializing symbol libraries!\n");
2299 goto out_delete_evlist;
2302 perf_evlist__config(evlist, &trace->opts);
2304 signal(SIGCHLD, sig_handler);
2305 signal(SIGINT, sig_handler);
2308 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
2311 fprintf(trace->output, "Couldn't run the workload!\n");
2312 goto out_delete_evlist;
2316 err = perf_evlist__open(evlist);
2318 goto out_error_open;
2321 * Better not use !target__has_task() here because we need to cover the
2322 * case where no threads were specified in the command line, but a
2323 * workload was, and in that case we will fill in the thread_map when
2324 * we fork the workload in perf_evlist__prepare_workload.
2326 if (trace->filter_pids.nr > 0)
2327 err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries);
2328 else if (evlist->threads->map[0] == -1)
2329 err = perf_evlist__set_filter_pid(evlist, getpid());
2332 printf("err=%d,%s\n", -err, strerror(-err));
2336 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
2338 goto out_error_mmap;
2340 if (!target__none(&trace->opts.target))
2341 perf_evlist__enable(evlist);
2344 perf_evlist__start_workload(evlist);
2346 trace->multiple_threads = evlist->threads->map[0] == -1 ||
2347 evlist->threads->nr > 1 ||
2348 perf_evlist__first(evlist)->attr.inherit;
2350 before = trace->nr_events;
2352 for (i = 0; i < evlist->nr_mmaps; i++) {
2353 union perf_event *event;
2355 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
2356 struct perf_sample sample;
2360 err = perf_evlist__parse_sample(evlist, event, &sample);
2362 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
2366 trace__handle_event(trace, event, &sample);
2368 perf_evlist__mmap_consume(evlist, i);
2373 if (done && !draining) {
2374 perf_evlist__disable(evlist);
2380 if (trace->nr_events == before) {
2381 int timeout = done ? 100 : -1;
2383 if (!draining && perf_evlist__poll(evlist, timeout) > 0) {
2384 if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0)
2394 thread__zput(trace->current);
2396 perf_evlist__disable(evlist);
2400 trace__fprintf_thread_summary(trace, trace->output);
2402 if (trace->show_tool_stats) {
2403 fprintf(trace->output, "Stats:\n "
2404 " vfs_getname : %" PRIu64 "\n"
2405 " proc_getname: %" PRIu64 "\n",
2406 trace->stats.vfs_getname,
2407 trace->stats.proc_getname);
2412 perf_evlist__delete(evlist);
2413 trace->evlist = NULL;
2414 trace->live = false;
2417 char errbuf[BUFSIZ];
2419 out_error_sched_stat_runtime:
2420 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
2423 out_error_raw_syscalls:
2424 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
2428 perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf));
2432 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
2435 fprintf(trace->output, "%s\n", errbuf);
2436 goto out_delete_evlist;
2439 fprintf(trace->output, "Not enough memory to run!\n");
2440 goto out_delete_evlist;
2443 static int trace__replay(struct trace *trace)
2445 const struct perf_evsel_str_handler handlers[] = {
2446 { "probe:vfs_getname", trace__vfs_getname, },
2448 struct perf_data_file file = {
2450 .mode = PERF_DATA_MODE_READ,
2451 .force = trace->force,
2453 struct perf_session *session;
2454 struct perf_evsel *evsel;
2457 trace->tool.sample = trace__process_sample;
2458 trace->tool.mmap = perf_event__process_mmap;
2459 trace->tool.mmap2 = perf_event__process_mmap2;
2460 trace->tool.comm = perf_event__process_comm;
2461 trace->tool.exit = perf_event__process_exit;
2462 trace->tool.fork = perf_event__process_fork;
2463 trace->tool.attr = perf_event__process_attr;
2464 trace->tool.tracing_data = perf_event__process_tracing_data;
2465 trace->tool.build_id = perf_event__process_build_id;
2467 trace->tool.ordered_events = true;
2468 trace->tool.ordering_requires_timestamps = true;
2470 /* add tid to output */
2471 trace->multiple_threads = true;
2473 session = perf_session__new(&file, false, &trace->tool);
2474 if (session == NULL)
2477 if (symbol__init(&session->header.env) < 0)
2480 trace->host = &session->machines.host;
2482 err = perf_session__set_tracepoints_handlers(session, handlers);
2486 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2487 "raw_syscalls:sys_enter");
2488 /* older kernels have syscalls tp versus raw_syscalls */
2490 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2491 "syscalls:sys_enter");
2494 (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
2495 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
2496 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
2500 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2501 "raw_syscalls:sys_exit");
2503 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2504 "syscalls:sys_exit");
2506 (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
2507 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
2508 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
2512 evlist__for_each(session->evlist, evsel) {
2513 if (evsel->attr.type == PERF_TYPE_SOFTWARE &&
2514 (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
2515 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
2516 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS))
2517 evsel->handler = trace__pgfault;
2520 err = parse_target_str(trace);
2526 err = perf_session__process_events(session);
2528 pr_err("Failed to process events, error %d", err);
2530 else if (trace->summary)
2531 trace__fprintf_thread_summary(trace, trace->output);
2534 perf_session__delete(session);
2539 static size_t trace__fprintf_threads_header(FILE *fp)
2543 printed = fprintf(fp, "\n Summary of events:\n\n");
2548 static size_t thread__dump_stats(struct thread_trace *ttrace,
2549 struct trace *trace, FILE *fp)
2551 struct stats *stats;
2554 struct int_node *inode = intlist__first(ttrace->syscall_stats);
2559 printed += fprintf(fp, "\n");
2561 printed += fprintf(fp, " syscall calls min avg max stddev\n");
2562 printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
2563 printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");
2565 /* each int_node is a syscall */
2567 stats = inode->priv;
2569 double min = (double)(stats->min) / NSEC_PER_MSEC;
2570 double max = (double)(stats->max) / NSEC_PER_MSEC;
2571 double avg = avg_stats(stats);
2573 u64 n = (u64) stats->n;
2575 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
2576 avg /= NSEC_PER_MSEC;
2578 sc = &trace->syscalls.table[inode->i];
2579 printed += fprintf(fp, " %-15s", sc->name);
2580 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
2582 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
2585 inode = intlist__next(inode);
2588 printed += fprintf(fp, "\n\n");
2593 /* struct used to pass data to per-thread function */
2594 struct summary_data {
2596 struct trace *trace;
2600 static int trace__fprintf_one_thread(struct thread *thread, void *priv)
2602 struct summary_data *data = priv;
2603 FILE *fp = data->fp;
2604 size_t printed = data->printed;
2605 struct trace *trace = data->trace;
2606 struct thread_trace *ttrace = thread__priv(thread);
2612 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
2614 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
2615 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
2616 printed += fprintf(fp, "%.1f%%", ratio);
2618 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
2620 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
2621 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
2622 printed += thread__dump_stats(ttrace, trace, fp);
2624 data->printed += printed;
2629 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
2631 struct summary_data data = {
2635 data.printed = trace__fprintf_threads_header(fp);
2637 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
2639 return data.printed;
2642 static int trace__set_duration(const struct option *opt, const char *str,
2643 int unset __maybe_unused)
2645 struct trace *trace = opt->value;
2647 trace->duration_filter = atof(str);
2651 static int trace__set_filter_pids(const struct option *opt, const char *str,
2652 int unset __maybe_unused)
2656 struct trace *trace = opt->value;
2658 * FIXME: introduce a intarray class, plain parse csv and create a
2659 * { int nr, int entries[] } struct...
2661 struct intlist *list = intlist__new(str);
2666 i = trace->filter_pids.nr = intlist__nr_entries(list) + 1;
2667 trace->filter_pids.entries = calloc(i, sizeof(pid_t));
2669 if (trace->filter_pids.entries == NULL)
2672 trace->filter_pids.entries[0] = getpid();
2674 for (i = 1; i < trace->filter_pids.nr; ++i)
2675 trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i;
2677 intlist__delete(list);
2683 static int trace__open_output(struct trace *trace, const char *filename)
2687 if (!stat(filename, &st) && st.st_size) {
2688 char oldname[PATH_MAX];
2690 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
2692 rename(filename, oldname);
2695 trace->output = fopen(filename, "w");
2697 return trace->output == NULL ? -errno : 0;
2700 static int parse_pagefaults(const struct option *opt, const char *str,
2701 int unset __maybe_unused)
2703 int *trace_pgfaults = opt->value;
2705 if (strcmp(str, "all") == 0)
2706 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
2707 else if (strcmp(str, "maj") == 0)
2708 *trace_pgfaults |= TRACE_PFMAJ;
2709 else if (strcmp(str, "min") == 0)
2710 *trace_pgfaults |= TRACE_PFMIN;
2717 static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler)
2719 struct perf_evsel *evsel;
2721 evlist__for_each(evlist, evsel)
2722 evsel->handler = handler;
2725 int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
2727 const char *trace_usage[] = {
2728 "perf trace [<options>] [<command>]",
2729 "perf trace [<options>] -- <command> [<options>]",
2730 "perf trace record [<options>] [<command>]",
2731 "perf trace record [<options>] -- <command> [<options>]",
2734 struct trace trace = {
2736 .machine = audit_detect_machine(),
2737 .open_id = audit_name_to_syscall("open", trace.audit.machine),
2747 .user_freq = UINT_MAX,
2748 .user_interval = ULLONG_MAX,
2749 .no_buffering = true,
2750 .mmap_pages = UINT_MAX,
2751 .proc_map_timeout = 500,
2755 .trace_syscalls = true,
2757 const char *output_name = NULL;
2758 const char *ev_qualifier_str = NULL;
2759 const struct option trace_options[] = {
2760 OPT_CALLBACK(0, "event", &trace.evlist, "event",
2761 "event selector. use 'perf list' to list available events",
2762 parse_events_option),
2763 OPT_BOOLEAN(0, "comm", &trace.show_comm,
2764 "show the thread COMM next to its id"),
2765 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
2766 OPT_STRING('e', "expr", &ev_qualifier_str, "expr", "list of syscalls to trace"),
2767 OPT_STRING('o', "output", &output_name, "file", "output file name"),
2768 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
2769 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
2770 "trace events on existing process id"),
2771 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
2772 "trace events on existing thread id"),
2773 OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
2774 "pids to filter (by the kernel)", trace__set_filter_pids),
2775 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
2776 "system-wide collection from all CPUs"),
2777 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
2778 "list of cpus to monitor"),
2779 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
2780 "child tasks do not inherit counters"),
2781 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
2782 "number of mmap data pages",
2783 perf_evlist__parse_mmap_pages),
2784 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
2786 OPT_CALLBACK(0, "duration", &trace, "float",
2787 "show only events with duration > N.M ms",
2788 trace__set_duration),
2789 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
2790 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
2791 OPT_BOOLEAN('T', "time", &trace.full_time,
2792 "Show full timestamp, not time relative to first start"),
2793 OPT_BOOLEAN('s', "summary", &trace.summary_only,
2794 "Show only syscall summary with statistics"),
2795 OPT_BOOLEAN('S', "with-summary", &trace.summary,
2796 "Show all syscalls and summary with statistics"),
2797 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
2798 "Trace pagefaults", parse_pagefaults, "maj"),
2799 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
2800 OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"),
2801 OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout,
2802 "per thread proc mmap processing timeout in ms"),
2805 const char * const trace_subcommands[] = { "record", NULL };
2809 signal(SIGSEGV, sighandler_dump_stack);
2810 signal(SIGFPE, sighandler_dump_stack);
2812 trace.evlist = perf_evlist__new();
2814 if (trace.evlist == NULL) {
2815 pr_err("Not enough memory to run!\n");
2820 argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
2821 trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
2823 if (trace.trace_pgfaults) {
2824 trace.opts.sample_address = true;
2825 trace.opts.sample_time = true;
2828 if (trace.evlist->nr_entries > 0)
2829 evlist__set_evsel_handler(trace.evlist, trace__event_handler);
2831 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
2832 return trace__record(&trace, argc-1, &argv[1]);
2834 /* summary_only implies summary option, but don't overwrite summary if set */
2835 if (trace.summary_only)
2836 trace.summary = trace.summary_only;
2838 if (!trace.trace_syscalls && !trace.trace_pgfaults &&
2839 trace.evlist->nr_entries == 0 /* Was --events used? */) {
2840 pr_err("Please specify something to trace.\n");
2844 if (output_name != NULL) {
2845 err = trace__open_output(&trace, output_name);
2847 perror("failed to create output file");
2852 if (ev_qualifier_str != NULL) {
2853 const char *s = ev_qualifier_str;
2855 trace.not_ev_qualifier = *s == '!';
2856 if (trace.not_ev_qualifier)
2858 trace.ev_qualifier = strlist__new(true, s);
2859 if (trace.ev_qualifier == NULL) {
2860 fputs("Not enough memory to parse event qualifier",
2867 err = target__validate(&trace.opts.target);
2869 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
2870 fprintf(trace.output, "%s", bf);
2874 err = target__parse_uid(&trace.opts.target);
2876 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
2877 fprintf(trace.output, "%s", bf);
2881 if (!argc && target__none(&trace.opts.target))
2882 trace.opts.target.system_wide = true;
2885 err = trace__replay(&trace);
2887 err = trace__run(&trace, argc, argv);
2890 if (output_name != NULL)
2891 fclose(trace.output);